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When to plant crocuses in San Rafael: by 6 May

In San Rafael, crocus: plant by 6 May. The winter here is too mild for our late-planting rule, so we give no later limit. For planting stock, the places nearby include Vivero Cedro Azul (garden centre, 2 km); addresses and opening hours are below.

Crocus in San Rafael: soil, season and weather

No month averages below 0 °C at night; the coldest nights, in July, average 2.2 °C.

Plantingby 6 May
First autumn frost5 June
Coldest nightsJuly, 2.2 °C
Soil back at 1 °C in springalready in the first week of July
Daylight10:35 on 6 May
Daylight at the winter solstice9:50

The same dates in San Rafael hold for Garlic, Tulip, Daffodil and Hyacinth.

Crocus in San Rafael: depth, winter cold, pests and pets

Plant Dutch crocuses (Crocus vernus) about 12 cm deep and 9 cm apart; smaller species go 7–10 cm deep (RHS).

In San Rafael the average daily temperature stays at 10 °C or lower for about 9 weeks a year (our estimate from ten years of monthly weather). For this bulb Wisconsin Horticulture Extension gives a cold period of 15–17 weeks at about 2–10 °C. That is less than the bulbs need, and without more cold they may not flower properly. The cold can also be given in a refrigerator at about 2–7 °C, as Wisconsin Horticulture Extension does for crocuses forced in pots.

Crocuses multiply on their own (they naturalise); in a lawn, hold off mowing until their leaves die back (RHS).

Birds, squirrels and rodents damage crocuses; planting under metal mesh may reduce losses (RHS). Spring crocus gives dogs and cats vomiting and diarrhoea; do not confuse it with autumn crocus (Colchicum), which is very toxic (Pet Poison Helpline).

Sources: RHS, Wisconsin Horticulture Extension, Pet Poison Helpline.

Crocus in nearby cities

All the nearest cities on our list plant crocus later than San Rafael; the closest date is in Curicó, 2 days later.

CityDistanceDateDifference
Mendoza198 kmby 18 May12 days later
Rancagua226 kmby 13 May7 days later
San Luis238 kmby 24 May18 days later
Curicó268 kmby 8 May2 days later
Talca314 kmby 14 May8 days later
San Juan343 kmby 21 May15 days later

Where to buy crocus for planting in San Rafael

Planting stock goes into the ground by 6 May; buy it before that. Within 15 km of San Rafael OpenStreetMap lists 1 garden centre, 1 market and 1 farm shop (collected 28 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant crocuses in San Rafael?

In San Rafael, crocus: plant by 6 May. The winter here is too mild for our late-planting rule, so we give no later limit.

When is the last spring frost in San Rafael?

Last spring frost around 23 August, first autumn frost around 5 June.

Other crops in San Rafael, with their dates